package ebook.thinking.chapter11;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

class Snow {}

class Powder extends Snow {}

class Light extends Powder {}

class Heavy extends Powder {}

class Crusty extends Snow {}

class Slush extends Snow {}

public class AsListInference {

	public static void main(String[] args) {
		List<Snow> snow1 = Arrays.asList(new Crusty(),new Slush(),new Powder());
//		List<Snow> snow2 = Arrays.asList(new Light(),new Heavy());//Type mismatch:can't convert from List<Powder> to List<Snow>
		List<Snow> snow3 = new ArrayList<Snow>();
		Collections.addAll(snow3,new Light(),new Heavy());
		List<Snow> snow4 = Arrays.<Snow>asList(new Light(),new Heavy());
	}
}
